ASVAB – Armed Services Vocational Aptitude Battery. Competency test that all enlisted personnel must take prior to enlisting. It helps to determine what jobs that recruits are and are not eligible for.

AT4 – Shoulder fired, single-shot, recoilless anti-tank weapon

BAS – Battalion Aid Station

BCG – Birth Control Glasses. Standard military-issue glasses that get their nickname because they are unattractive. It is difficult to charm members of the opposite sex while wearing them.

BDA – Battle Damage Assessment

BDOC – Base Defense Operations Center

BDU – Battle Dressing Uniform

BIAP – Baghdad International Airport

BSA – Bilateral Security Agreement

BUD/S – Basic Underwater Demolition/SEAL training

BUMED – US Navy Bureau of Medicine and Surgery

CASREC – Casualty Receiving

CAG – Commander, Air Group

CG – Commanding General

CHU – Containerized Housing Unit

CJSOTF-A – Combined Joint Special Operations Task Force-Afghanistan

CLS – Combat Lifesaver course

CNO – Chief of Naval Operations

COIN – Counter Insurgency

Conex Box – a large container designed for international shipping. These containers were fashioned into living quarters for personnel in Iraq and Afghanistan.

COP – Combat Outpost

C-RAT – Individual wet ration

CROWS – Common Remotely Operated Weapons Stations

CSH – Combat Surgical Hospital

CST – Cultural Support Team

CTM – Combat Trauma Management

DEA – Drug Enforcement Agency

DFAC – Dining Facility

DI – Drill Instructor

ECM – Electronic Counter-Measures

ECP – Entry Control Point

EOD – Explosive Ordnance Disposal

EPW – Enemy Prisoner of War

FMF – Fleet Marine Force. A warfare designation given by the Navy to Corpsman who have achieved proficiency with the Marines.